White Apuan marble being quarried at the head of a dramatic V valley up for the river Secchia. This is the “Tuscan Fault” where the Corsica-Sardinia block is abutting the Po Plain, pushing up the Alpi Apuae and crumpling the crust to form the Orecchiella range. The rocks exposed in the Alpi Apuae have been subject to great pressure and heat, which are now quarried for their building properties and beauty.